This was touched on a bit in the artical -- A problem that I've always had with OOP (as in class & method syntax) languages. I'm always worrying about the functions (i.e. code) too much. There is this tendency to abstract from the data prematurely, ending up with many small data silos that talk to each other without real understanding what's happening in the global picture. That's often not a great way to design data structures. Of course, syntax is just syntax, and in most languages the OOP part is only optional, but for me this has been a real effect. I've had more success just constraining myself to procedural.